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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 7701
2011 Defender 110 Puma 2.4 USW Stornoway Grey
cheers Ian

so if you have no mid box, would you recommend a decat pipe? Cheers

James
110 XS Utility
130 Puma Station wagon/camper (in the making)
90 Puma Hardtop
Post #256783 6th Aug 2013 7:24pm
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Porny
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Member Since: 31 Aug 2009
Location: Sutton Coldfield - West Midlands
Posts: 792
 
jst wrote:
cheers Ian

so if you have no mid box, would you recommend a decat pipe?


Depends if the Calibration is matched to the exhaust?

You might find your Defender will end up surging as turbo is trying to control... which isn't ideal.


Ian IRB
The home of the first modified Keswick Green 90 - and the first 2.4 Puma through both the 200bhp and 550Nm barriers.

www.IRBdevelopments.com

www.facebook.com/irbdevelopments

www.integrated316.com

www.facebook.com/integrated316
Post #256808 6th Aug 2013 8:07pm
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 7701
2011 Defender 110 Puma 2.4 USW Stornoway Grey
ok, cheers, food for thought. Cheers

James
110 XS Utility
130 Puma Station wagon/camper (in the making)
90 Puma Hardtop
Post #256818 6th Aug 2013 8:18pm
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hornet



Member Since: 04 Jan 2010
Location: Western Europe
Posts: 330
ZeDefender wrote:

[...] Normally he would only measure smoke particles for a diesel, but he says CO2, CO and HC shouldn't be a problem. As long as I don't mention the word "decat" he is legally OK. Pity he can't fit it for me but he would be breaking the law. He also can't measure NOx (EGR blanking) at the exhaust but says it might be possible via diagnostics.
Anyone know about this (I haven't noticed on Scangauge II)?

Matt


I read this (old) thread with interest. Did you finally measure CO and HC before and after the de-cat-project and can post the values?
Did anyone compare emissions before and after the de-cat? Important would be the milage of the vehicle as well to evaluate the potential coating of the cat-cells that causes reduced output/catalysis...
Post #682839 30th Jan 2018 10:31am
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bos



Member Since: 11 Feb 2016
Location: Dolenje jezero
Posts: 9
Slovenia 2012 Defender 90 Puma 2.2 CSW Sumatra Black
I have 3 decat Defender 2,4 beter drivig, lower consumption cca. 650 km/67 lit. My 2,2 def with DPF 460-510 km/67 lit.


Click image to enlarge
Post #687004 16th Feb 2018 5:35pm
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hornet



Member Since: 04 Jan 2010
Location: Western Europe
Posts: 330
Cheers, so is it better saving primary energy (lower consuption, lower particle emission) or wasting primary energy due to collecting particles and burning them to ash... Wink
Post #688376 23rd Feb 2018 10:42am
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zsd-puma



Member Since: 09 Aug 2016
Location: Kent
Posts: 2720
United Kingdom 2010 Defender 110 Puma 2.4 USW Santorini Black
thats the description of a DPF not a CAT
Post #688394 23rd Feb 2018 11:59am
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hornet



Member Since: 04 Jan 2010
Location: Western Europe
Posts: 330
Yes! De-cat lowers consumption, DPF rises it. So the question is what's better. Saving energy or particles...
Post #688415 23rd Feb 2018 2:10pm
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